What I assume to be a decaying humpback whale found in half moon

Circle of life, a spider snatches a fly on a dead Common Skate

what is this and why did they do this? terrible!

Giant Worm? Please help ID this Eldritch horror.....

Warning: dead animal pictured and some blood /// Any idea what

Help! What is this?

An ID for this please? Found on myself after a surf session.